Machine for etching



No. 622,'8I6.

Patented Apr. Il, |899.

J. E. LIPPINCOTT. MACHINE FOR ETCHING, STAMPING, 0R MARKING GLASSWARE.

(Application filed Feb, 28, 1898.)

3 Sheets-Sheet l (No Model.)

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No. 622,8I6. Patented Apr. Il, |899.

J. E. L|PP|NCoTT. MACHINE FOB ETCHING, STAMPING, 0R MARKING GLASSWARE.

(Application led Ieb. 23, 1898.) (No Modl.) 3 Sheets-Sheet 2.

No. 622,8l6. Patented Apr. ||`,|a99.

J. E. LlPPmcoTT;

MACHINE FOR ETCHING, STAMPING, 0R MARKING GLASSWARE.

(Application med Feb. 2a, 189s.) (Nu Model.) 3 Sheets-Sheet 3.

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NITED STATES PATENT OFFICE.

.IA-SON EVANS LIPPINCOTT, OF ALEXANDRIA, INDIANA, ASSIGNOR TO THE LIPPINCOTT GLASS COMPANY, OF SAME PLACE AND CINCINNATI, OIIIO.

MACHINE FOR ETCHING, STAMPING, OR MARKING GLASSWARE.

SPECIFICATION forming part of Letters Patent N0. 622,816, dated April 11, 1899.

i Application filed February 28,1898. Serial No. 671.335. (No model.)

'1"0 LM w/wm/ t may concern:

Be it known that I, JASON EvANs LIPPIN- GOTT, a citizen of the United States, residingV at Alexandria, in the county of Madison and State of Indiana, have invented a new and useful Machine for Etching, Stamping, or Marking Glassware, of which the following is a specification in its `best form now known to me.

My invention relates to a machine for etching, stamping, or marking the tops or bottoms of lamp-chimneys, punch-tumblers, or other articles of glass, which is adapted to operate on articles having an approximately cylindrical or convex surface as well as other surface. Vhile it may be used for etching or stamping any design upon such an article, it is particularly adapted to marking such articles with a crest or with a trade-mark of the maker.

It also consists in the features and details of construction hereinafter described and claimed.

The machine here described is one which I have used for marking lamp-chimneys; but I do not limit my invention to such use.

Figure 1 shows a side elevation of my inachine, partly in section; Fig. 2, a detail view of an attachment for holding. the tops of lampchimneys. Fig. 3 is a sectional side view of Fig. 2. Fig. t is a detail View of the stamppad. Fig. 5 is a view on line 5, and Fig. 6 a view on line 6, of Fig. 3. Fig. 7 is a sectional View of the acid-tank, and Fig. 8 a plan View showing the cams which control the acid and stamp pads.

In the drawings similar gures and letters represent similar parts throughout the several views.

11 is alarge horizontal wheel mounted upon the vertical shaft 12, pivoted in the pedestal 13, and power is applied to the upper end of the shaft (not shown) to slowly revolve the wheel and shaft. idly attached to its upper surface a covering of wood 14; but the entire wheel may be made of metal. Around the wheel, a little distance from the center and at equal circumferential distances apart, are rigidly secured the plunger-housings 15, having lmounted therein the plunger-rods 16, adapted to slide The metal wheel has rig# in and out through holes 17 in the ends of the housing. Fig. 8 shows a wheel adapted for sixteen of these plunger-s; but in practice any number may be used, and I have found most satisfactory a wheel with thirty-two such plungers. Each plunger has rigidly secured to it by a set-screw 18 (or any other convenient means) a yoke 19, havings wings 20, adapted to slide back and forth on the under side 2l of the housing 15, thus pre-A venting the plunger-rod from turning, while allowing it to slide in and out of the housing. The rod is forced outward from the center of the wheel by means of the coiled spring 22, surrounding the rod, bearing against the yoke l9-and the inner end of the housing 15. Projecting downward from yoke 19 and a part thereof is a rod 23, passing through slot 24fin the table and having at its lower end a roller 25, bearing against a circular cam 26, which is placed below the revolving table and rig idly supported and secured in position by the standards 27, secured tothe iioor of the room. As roller 25 is held against the inner face'of cam 26 by spring 22 on plunger 16 when the Wheel l1 is rotated, the roller 25 will travel along cam 26 and the plunger will therefore move in and out of housing 22 under the combined action of the cam and spring. The shape of the cam will be more fully described hereinafter. A

At the outer end of the plunger-rod 16 is secured the clamp 27, in which is fastened, by means of thumb-screw 2S, the block 29, bearing on its face the pad 30, made of spongerubber. The face of the pad is curved and adapted to Iit the surface of the lamp-chimney or other surface which is to be stamped and bears the design 31, which is to be marked thereon. a diderent design is to be marked, by loosening the set-screw 28 a properly-shaped stamppad may be placed on the plunger.

In front of each plunger and securely attached to the revolving table are two sets of blocks 32 and 33, respectively. These blocks 32 are at an angle and position adapted to have a large lamp-chimney placed between them and the stamp-pad and hold the chimney or other article while the chimney is being stamped. The inner blocks 33 are adapt- When a di fferent-shaped article or V IOO ed to hold in the same way a smaller chimney, and they are so designed and placed as not to interfere with the use at a different time of a large chimney vin^blocks 32.

When it is desired to stamp the top of a chimney having a small top, it is necessary to hold the chimney more firmly (to prevent its tipping over) than blocks 32 land 33 will hold For this purposeI provide an auxiliary wheel 34, which is adapted to fit over and be bolted to wheel ll, as shown in Figs. 2 and 3, when in use, and which may be raised up and out of the way and hung from any convenient support by cords 35 or other suitable means. In this wheel 34 at intervals corresponding to the number of stamping-plungers and at positions in front of said plungers are holes 36, having the angular faces 37,

Y adapted to receive and center the top of a lamp-chimney. Opposite these faces is the spring plunger 38, adapted vto be forced against the chimney 39 by spring40, thus holding the chimney secu rely in position in front of the stamping-plunger for marking by stamp 30. This arrangement is also necessary, because blocks placed close enough for a small chimney would be in the way of the acid-plunger. At the rear of the springplunger 38 and connected therewith is a roller 8.5, and by placing a cam (not shown) similar to cam 44 above this auxiliary wheel the grip of the plunger upon the chimney in theopening of the wheel may be automatically made and released, so that chimneys may be putin up to position n, will be held in passing positions fn, to p, and will be released after passing that point.

In order to have the stamping or etching properly done, it is necessary that the stampdesign 3l should receive a fresh coating of acid just before it comes in contact with the article to be marked, and I do this by means of the acid-pads hereinafter described.

Around the outer edge of the Wheel 1l and directly opposite each stamping-plunger is radially placed an acid-pad 4l, mounted on a carriage or plunger 42, adapted to slide back and forth in guides or ways in the wheel 11. At the rear of the carriage or plunger 42 is a roller 43, adapted to move in the circular cam 44, which is rigidly secured slightly above thel wheel to the supports 45, rising from'the door outside the wheel 1l.

46 is an acid-roller, (mounted, and to which acid is supplied, as hereinafter described against which each acid-pad 4l in succession presses as wheel 1l revolves and receives a coating of acid.

a to p, inclusive, represent successive positions of each stamping-pad and its corresponding acid-pad, and under control of cams 26 and 44 these pads move as follows as wheel 1l slowly revolves: At position a the stamping-pad is at its inside position and the acidremain in this position until position f is reached, where acid-pad 41 passes over acidroller 46 and receives a coating of acid and then begins to inove in toward the center of the wheel, until at position i it comes in contactwith stamping-pad 30 and gives it a coating of acid, and then moves outward again, until at position mit reaches its original distance from the center of the wheel, (stampin gpad 30 having remained at the center of the wheel from d to 101,) and it continues to travel in this position back to starting-point a. Between positions m and n there is an opening in cam 26, and in passing from m to 'n the spring 22 forces the plunger 16 outward, so that roller 25 passes through opening 47 to the outside of cam 26 at position n, thus forcing the stamping-plunger against lamp-chimney 48, (or other article to be stamped,) where it is held until after passing position p, when the roller 25 moves through opening 49 back to its original position on the inside of the cam 26 at point' of starting a. The articles to be marked are placed on the wheel at positionsZand/m, are stamped in passing through positions n, o, and p, and are removed at or before position e. V

It is evident that the stamping-pads may be arranged around the outside of the wheel and the acid-pads arranged .around the center of the wheel, or .one pad may be made to travel in substantially a circle and the other pad do all the traveling backward and forward without changing the character of my invention. K

`The part 50 of camA 26 which is between the positions n, o, and p, where the stamping is done, is a piece of spring-steel fastened near its ends by bolts 5l and 52 or other means, so as to curve outward and form a spring as Well as a cam to hold the stamping-pad 30 securely against the article to be marked. .The sprin g may be adjusted by having slots where bolts 5l and 52 pass through it into the support 27, thus allowing the cam to be adj usted to the proper .position before the bolts are tightened. fastened at 54 and 55 on the outside of cam 44, and is adapted to yield as acid-pad 41 passes over roller 46 and cause the roller to press with substantially the same force against all parts of the pad, thus giving it a uniform supply of acid.

At one side of the wheel at.position f, as shown in Fig S, mounted on a stand or support 56, is the framework 57, on which are mounted the vertical shafts 58, 59, and 60. The two former overhang wheel l1 and are geared together at their upper ends by gears 6l and carry on their lower ends the acid-roll 46 and a spreading-roller 62. These two rollers just clear the wheel 1l and roll together so as to spread any acid which may be on either evenly on both. Shaft 59- is belted to shaft 60 by pad at its outside position with reference to the center of the wheel, (shown by dotted lines, Fig. 8,) and as the wheel revolves they belt o, and shaft 60 is belted to shaft 12 of main wheel ll by belt 64. The respective pulleys 65, 66, 67, and 68 are so designed that 53 is another piece of spring-steel' lOO IIO

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the surface speed of acid-roller 46 will be substautially the same as the surface speed of each acid-pad 4l as it passes over the roller when wheel l1 rotates, thus removing all chance of the rollers injuring the pad.

At the upper end of shaft 59 is a horizontal pulley 69, and lis a vertical pulley, over both of which a twisted belt S4 passes. 74 is an idle pulley, over which th-is belt also passes. Pulley 70 is attached to horizontal shaft 7l, mounted on frame 57. At the opposite end of shaft 7l is a crank 72, connected by crankrod 73 to a vertical rod 74, which is adapted to slide up and down in frame 57. The proportions of pulleys 69 70 and crank 72 arey such that rod 74 will be rapidly moved up and down, thus shaking up acid-tank 75 upon shelf 76, attached to said rod 74. The tank and shelf are adjustable lup and down on the rod by means of set-screws 77 and 78. The tank 75 is made, preferably,of metal, is watertight, and contains a rubber acid-bottle 79, corked so as to be air-tight. The bottle 79 has a rubber tube 80 leading from it toapoint directly over acid-rollers 46 and 62, so as to drop acid upon said rollers, to be distributed over them and conveyed by roller 46 to acidpad 41. 8l is a clamp adapted to control the How of acid. As the acid-bottle is tightly corked and the opening in the rubber tube is Vertr7 small, the acid will be heldin it by air-pressure,except when the bottle is shaken, when the acid will be thrown outl in small quantities. The bottle 79 is surrounded with water S2, which is kept hot bya gas-Haine issuing from the jet S3, thus causing the acid to flow more easily upon the rollersand acidpads and act more lreadily upon the article to be marked.

A system of gearing may be substituted for the belts shown for driving the acid-rolls and shaking the acid-bottle Without changing the character of my invention. An air-blast may be supplied by a tube connected with any suitable blower to blow the drops of acid as lthey fall from the end of tube S0 upon the distributing-rollers 46 and 62.

I'Iaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination of a rotating Wheel, means for securing an article t-o said Wheel, a stamping-pad mounted radially upon Vsaid wheel and means for moving said stampingpad along the radius of said wheel as it revolves into and out of contact with said article, whereby said article is marked, stamped or etched.

`2. The combination of a rotating Wheel, means for securing an article to said Wheel, a stamping-pad mounted radially upon said wheel, means for applying acid or other marking material to said stamping-pad, and means for moving said stamping-pad along the radius of said wheel as it revolves into and out of contact with said article, whereby said article is marked, stamped or etched.

3. In a machine of the class described, in combination, a wheel, means for temporarily securing a glass article thereto, one or more radial plungers mounted upon said Wheel, stamping-pads at the on-ter ends ot' said plungers, means whereby, as the wheel revolves, aplunger is caused to move outward during a portion of the revolution of said wheel and force its stamping-pad in contact with an article placed on said wheel opposite its stamping-pad, and means for causing said plunger to Withdraw from said article during the remainder of the revolution of said wheel.

4. In a machine of the class described, the combination of a wheel,a plurality of stamping-plungers, each bearing a stamping-pad, arranged radially about the center of said wheel, an equal number of acid-plungers, each bearing an acid-pad, arranged -around the outer edge of said wheel, substantially opposite said stamping plungers, means whereby at-one point in the revolution of said wheel each acid-pad is brought in contact with its stamping-pad, and means whereby at another point in the revolution of said wheel each stamping-pad is held in contact with an article temporarily placed upon said wheel whereby said article is stamped,marked or etched.A

5. In a machine of the class described, the combination of a wheel, one or more stamping-pads arranged radially around the center of said Wheel, another pad bearing acid or other stamping material substantially opposite each stamping-pad, means for causing each pair of pads to come in contact with each other at one point'in the revolution of the wheel, and means whereby during another portion of the revolution of said Wheel said stamping-pad is forced into contact with an article to be marked, whereby said article is stamped, marked or etched.

6. In a machine of the class described, th combination of a wheel, one or -more stamping-pads arranged radially around the center of said wheel, another pad bearing acid or other marking material substantially opposite each stamping-pad,means for supplying stamping material to said second-mentioned pad, means for causing each pair of pads to come in contact with each other at one point in the revolution of the wheel, and means whereby during another portion of the revolution of said wheel said stamping-pad is forced into contact with an article to be marked, whereby said article is stamped, marked or etched.

7. In a machine of the class described, the combination of a wheel, one or'more stamping-pads arranged radially around the center of said wheel, another pad bearing acid or other marking material substantially opposite each stamping-pad, two or more distributing-rollers in contact with each other against one of which each acid-pad passes in one revolution of said wheel, means for suppl ying marking material to said rollers, means IOC IIO

IIS.

for causing each pair of pads to come in contact with eachother at one point in the revolution of the wheel, and means whereby during another portion of the revolution of said wheel said stamping-pad is forced into contact with an article to be markedwher eby said article is stamped, 'marked or etched.

8. In a machine of the class described, the combination of a wheel, one or more stamping-pads arranged radially around the center of said wheel, another pad bearing acid or other markingv material substantially opposite each stamping-pad, two or more distributing rollers in contact with each other against which each acid-pad passes in one.

I marking material at one side of said wheel,

adjacent to said rollers,means for shakin g said tank whereby marking material in small quan'- tities is conveyed to said rollers, means. for causing each pair of pads to come in contact with each other at one point in the revolution of the wheel, and means whereby during another portion of the revolution of said wheel said stamping-pad is forced into contact with an article to be marked, whereby said article is stamped, marked or etched.

9. In a machine of the class described, the combination of a rotating wheel, one or more plungers, each bearing a stamping pad, mounted thereon, a spring adapted to force said plunger in one direction, and a cam adjacent to said wheel adapted to force said plunger in the opposite direction, whereby as said wheel revolves said plunger (and its stamping-pad) is moved backward and.v forward.

10. In a machine of the class described, a wheel, a housing attached to said wheel, a plunger mounted in said housing, a yoke attached to said plunger extending through a slot in said wheel, a spring surrounding said plunger. between said yoke and one end of said housing adapted to force said plunger outward through the end of its housing, and a cam adjacent to said wheel adapted to act on said yoke and move said yoke and plunger back against the action of said spring.

l1. In a machine of the class described, the combination of a rotary wheel having a marking apparatus attached thereto, the cam 26 i made in two parts (26 and 50) with openings 47 and 49 between them substantially'as shown, and a roller attached to said marking apparatus adapted to travel along said cam through said openings, whereby during a portion of the revolution of the wheel the marking apparatus is forced against the article to be marked and is withdrawn during the readapted to control the motion of acid-pads f upon said wheel, one or more rollers adjacent to said wheel adapted to supply acid to said pads, in combination with means in the side of said cam opposite said rollers whereby as each pad passes over the roller the pressure of contact of said roller at all parts of the pad is substantially equal.

14. In amachine of the class described, in combination with one or more spreading-rollers, a substantially air-tight acid-tank adjacent thereto, means for shaking said tank whereby acid is delivered from said tank to said rollers.

15. In a machine of the class described, the combination of an auxiliary wheel adapted to be attached to and detachedv from said machine, op'enings in said wheel adapted to receive and center an article to Abe marked, and means at one side of said openings for holding said article in said opening of said wheel.

16. In a machine of the class described, the combination of a tank, a bottle substantially air and Water tight containing acid, means adapted to conduct acid, leading from said tank or bottle to distributing-rolls, another tank, filled with water, surrounding said rstmentioned tank, means for shaking said tanks whereby acid is delivered to thev distributingrollers.

J. EVANS LIPPINCOTT.

Witnesses:

STEPHEN L. OBRYANT, S. HALDER.

IOCI 

